Ice-cutting machine.



J. J. TOBIN. ICE CUTTING MACHINE. APPLICATION FILED APR. 8, 1909.

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WITNESSES A TTORNEY.

Annkiw. a. GRAHAM co., Pmraumonmnens. wAsmNamn, D. c.

J. J. TOBIN.

1GB GUTTING MACHINE.

APPLICATION FILED APB.. 8, 1909.

Patented Aug'. 31, 1909.

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WITNESSES.'

ff/ A mnmwA e. GRAHAM 00.. nwmumoamvnins. WASHINGTON. nV ilY Patented Aug. 31, 1909.

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INVENTOR. BY du@ WITNESSES:

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JOHN J. TOBIN, 0F ONEONTA, NEW YORK.

ICE-CUTTING MACHINE.

To all lwhom it may concern.'

Be it known that I, JOHN J. ToBIN, a citizen of the United States, residing at Oneonta, in the county of Otsego and State of New York, have invented certain new and useful Improvements in Ice-Cutting Machines, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to improvements in ice cutting machines in which rotary knives are operated, and the vehicle carrying the operating mechanism of the knives is driven by power; and the objects of my improvements are, to provide an ice cutting machine that will afford facilities for raising and lowering the rotary knives or saws to suit the thickness of the ice to be cut; for the use of one or more of said saws; to provide a machine that will travel ,at a great speed while in operation; that will be easily operated and controlled; that will be simple, durable, and economical in its construction, operation and producing capacity.

I attain these objects by the mechanism illustrated in the accompanying drawings, in which similar reference numerals indicate like parts in the various figures.

Figure -1- is a front elevation of my machine in operation, the dotted lines showing the position of the saws when not in operation, and when the lever -18- is raised; Fig. 2* is a plan view of the same; and Fig. 3-, is a front view.

The operating mechanism of the ice machine is mounted upon a sled comprising the platform -1-, runners -2- and legs -3-. An engine -4- is mounted on the platform -1-, a connecting rod -5- oper ating the crank shaft -7- and the two fly wheels -6-. A belt -8- passing around the big pulley 9 on the shaft -7- and the small pulley -10- on the saw shaft -12- drives the saws -11- on the shaft -12-. rlhe saw shaft -12- is mounted in bearings -12- which are secured to the ends of the levers -l3-. Theupper ends of the levers 1S- are connected by a suitable rod -31- and the levers are held in a desired position by means of the hooks and chains -13- which connect the upper ends of the levers with the rear end of the platform -1-. V

Beneath the platform 1* of the sled is suitably mounted a lever -16- in brackets -16- 'and is provided with a handle Specification of Letters Patent.

Application led April 8, 1909.

Patented Aug. 31,1909.

serieu No. 488,705.

-17-. This lever is connected at the forward end and midway of its length with inverted U-shaped levers 14:- consisting of horizontal bars with two depending arms at their extremities. The upper end of each Ushaped'lever is in contact with the platform in Vorder to force the traction wheels into contact with the ice, the lower ends of the inverted U-shaped levers passing around ythe axles l5- and -wlwhich are mounted to slide vertically in the bearings -15- which are secured to the top of the runners -Q..

Spiked wheels 18- and -l8 are mounted on the front and rear axles 15- respectively and when the lever -16- is drawn backward, the inverted U-shaped levers 14- are drawn toward a vertical position which forces the axles -15- 15- upon which the spiked wheels -18- and ,-18- are mounted, downwardly in the bearings -15- so as to cause the spiked wheels to engage the ice --26-.

Sprocket chains -20- and -20 connect respectively sprocket wheels on the axle 22- and on the axles -15. The axle -22- is supported in bearings -22- secured to the lower portion of the platform The sprocket wheel -23- on the axle -22 is driven by sprocket chain 24.- which connects it with the sprocket wheel -25- on the crank shaft -7-.

The top surface of the ice is indicated by the numerals 26-, the cut portion by -26-, the ice shown in cross section is indicated by 26-- The water is indicated by numerals -27-- The main lever 113- is fulcrumed on the axle *28- which is mounted in bearings 29- on the forward end of the platform -1-.

Markers 3G- are adapted to be hung in and carried by the sockets -30- which are secured to the legs -3- of the sled.

I propose to use a water jacket gasolene engine to operate the saws and propel the machine. The saws can be set to cut the ice into cakes of any desired size.

It is obvious that my machine may be regulated as to speed and will out more ice than a dozen horses. By regulating the speed of the machine, it may be made to travel from fifty to one hundred feet per minute.

Vith this description of the novel construction, arrangement and combination of nation wit-ha sled, of a pair of parallel main levers fulerumed on the forward endV of sled, a shaft mounted in the outer end of said levers, a pulley and circular saws secured form, forth.

to said shaft, an engine mounted on said sled, a pulley on crank-shaft of said engine and a belt connecting said pulley with pulley on saw-shaft, means for holding said levers in the tilted position desired, bearings on runners of sled, axles mounted and movable vertically in said bearings, spiked wheels mounted on said front and rear axles, a hand lever mounted in brackets beneath the platform of sled,inverted U-shaped levers pivotally connected with said hand lever at its forward end and midway of its length, theV lower ends of the inverted U-shaped levers passing around said front and rear axles, sprocket wheels mounted on said front and rearV axles, axle bearings suspended in a plane abovesaid front and rear axles and beneath the sled platform, an axle mounted in said bearings, sprocket wheelsrsecuredY to said axle, sprocket chains connecting sprocket wheels on said axle and on said front and rear axles to drive said spiked wheels, a sprocket on the crank-shaftof said engine and al sprocket chain connecting the sprocket on-saidcrank-shaft with a sprocket on the' axle suspended beneath the said plati all constructed substantially as set 2. -In an ice-cutting maehine, the combination with a sled, of a pair ofV parallel main levers fulcrumed on the forward end of sled, a shaft mounted in the outer end of said levers, a pulley and circular saws secured to said shaft, an engine mounted on said sled, a pulley on crank-shaft of said engine and a beltconnecting said pulley with pulley on saw-shaft, means for holding said levers in the tilted position desired, bearings on runners of sled, axles mounted and movable vertically in said bearings, spiked wheels mounted on said front and rear axles, a hand lever mounted in brackets beneath the platform of sled, inverted U-shaped levers pivotally connected with said hand lever at its forward end and midway of its length, the lower ends of the inverted U-shaped levers passing around said front and rear axles, sprocket wheels mounted on said front and rear axles, axle bearings suspended in a plane above said front and rear axles and beneath the sled platform, an axle mounted in said bearings, sprocket wheels secured to said axle, sprocket chains connecting sprocket wheels on said axle and on said front and rear axles to drive said spiked wheels, a sprocket on the crank-shaft of said engine and a sprocket chain connecting the sprocket on said crank-shaft with a s )rocket on the axle suspended beneath the said platform, sockets secured to the legs of said sled and markers adapted to be hung in and carried by said sockets, substantially as set forth.

In testimony whereof I aiix my signature in presence of two witnesses.

Y JOHN J. TOBIN.

Titnesses IViLLiAM J oi-IN ToniN, JOHN MULLALY. 

